Research Products 6743 Zone Damper with Motor Square

Product Description

The RESEARCH PRODUCTS 6743 is a motorized zone damper designed for residential and light commercial HVAC zoning systems. It features an aluminum frame and blade construction with a galvanized finish, providing durability in forced-air duct applications. The integrated synchronous motor operates on 24 VAC at 60 Hz, drawing 6 watts and 12 VA. The damper is power closed and spring open, meaning it defaults to the open position on a power loss — an important failsafe characteristic for zoning installations. At 11-7/8 inches wide and 11.813 inches in height, this square damper fits standard duct openings in that size range. Licensed HVAC technicians typically handle the installation and wiring of this component.

The 6743 is suited for residential and light commercial forced-air zoning applications where independent temperature control of multiple zones is required. Its side-mounting configuration fits standard duct installations, and its 1 inch water column pressure rating supports typical residential and light commercial static pressure conditions. The synchronous motor design integrates cleanly with 24-volt zone control boards and thermostats common in multi-zone HVAC systems.

Key Features

• Aluminum frame and blade construction with galvanized finish for corrosion resistance
• Power closed, spring open motor operation provides failsafe open position on power loss
• 24 VAC synchronous motor at 60 Hz, 6 W, 12 VA for compatibility with standard low-voltage zoning controls
• Square shape at 11-7/8 x 11.813 inches fits standard residential and light commercial duct openings
• 1 inch water column pressure rating suitable for residential and light commercial static pressure requirements
• Side-mounting design for straightforward duct installation

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for residential and light commercial forced-air HVAC zoning systems requiring a square motorized damper at approximately 11-7/8 inches.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with low-voltage zoning systems and local mechanical codes. Disconnect and lock out power to the air handler and zone control board before mounting or wiring the damper. The 24-volt motor connections must be made to a compatible zone controller or damper control board — verify control board specifications before wiring. Do not force the blade manually while the motor is energized.

Technical Specifications

• Material: Aluminum Frame and Blade
• Finish: Galvanized
• Shape: Square
• Width: 11-7/8 inches
• Height: 11.813 inches
• Motor Type: Synchronous, Power Closed, Spring Open
• Motor Voltage: 24 VAC at 60 Hz
• Motor Power: 6 W, 12 VA
• Pressure Rating: 1 inch WC
• Mounting Type: Side

Standard Information

• Brand: RESEARCH PRODUCTS
• Manufacturer Part Number: 6743